Help please,Starting issues with my XJ900 Diversion

[AdieR]

"After connecting it back up & pressing the starter all i got was a clicking,then a buzzing from the solenoid! & all the lights on the dash dimmed quite badly as if the battery is knackered  [img alt=:eek]http://foc-u.co.uk/Smileys/efocicon/shocked.gif[/img] ???"

I think you've just answered your own question - try a new battery.